This is a ppt on loon giving a brief introductory about it.

1. Project Loon

2. WHAT IS LOON??
 Many of us think of the Internet as a global community.
 But two-thirds of the world’s population does not yet have Internet
access.
 Project Loon is a network of balloons traveling on the edge of
space, designed to connect people in rural and remote areas, help
fill coverage gaps, and bring people back online after disasters.

3. HOW IT WORKS
 Project Loon balloons float in the stratosphere, twice as high as
airplanes and the weather.
 In the stratosphere, there are many layers of wind, and each layer
of wind varies in direction and speed.
 Loon balloons go where they’re needed by rising or descending into
a layer of wind blowing in the desired direction of travel.

4. HOW IT WORKS(cont..)
 A small box containing the balloon’s electronics hangs underneath
the inflated envelope, like the basket carried by a hot air balloon.
 This box contains circuit boards that control the system, radio
antennas to communicate with other balloons and with Internet
antennas on the ground, and lithium ion batteries to store solar
power so the balloons can operate throughout the night.

5. HOW LOON FLIES
 Situated on the edge of space, between 10 km and 60 km in
altitude, the stratosphere presents unique engineering challenges:
air pressure is 1% that at sea level, and this thin atmosphere offers
less protection from UV radiation and dramatic temperature swings,
which can reach as low as -80°C.
 By carefully designing the balloon envelope to withstand these
conditions, Project Loon is able to take advantage of the
stratosphere’s steady winds and remain well above weather events,
wildlife and airplanes.

6. HOW IT PROVIDES INTERNET
 Each balloon can provide connectivity to a ground area about 40
km in diameter using a wireless communications technology called
LTE.
 To use LTE, Project Loon partners with telecommunications
companies to share cellular spectrum so that people will be able to
access the Internet everywhere directly from their phones and other
LTE-enabled devices.
 Balloons relay wireless traffic from cell phones and other devices
back to the global Internet using high-speed links.

7. WHERE LOON HAS BEEN
 Project Loon began in June 2013 with an experimental pilot in New
Zealand, where a small group of Project Loon pioneers tested Loon
technology.
 The results of the pilot test, as well as subsequent tests in New
Zealand, California’s Central Valley and in Northeast Brazil, are
being used to improve the technology in preparation for the next
stages of the project.

9. THANK YOU